13 books • 6 series
Book #6: 2000 Steps to Better French Language Skills through Innovative and Creative Word Puzzles
Book #6: German Word Puzzles
Book #11: Master German Vocabulary
Book #4: 3000 Spanish Word Puzzles to Improve your Spanish Vocabulary and Fluency in Just 30 Days
Book #4: 1000 Dutch Word Games to Upgrade your Dutch Language Skills and Knowledge in a Creative Manner
Book #5: ESL Mastery
Book #3: Italian Word Puzzles
Book #4: Italian Forever